16. The sum of the roots of quadratic equation is:
A. B. − C. − D.
17. The product of the roots of quadratic equation is:
A. B. − C. − D.
18. What is an equation whose roots are 5 + √2 5 − √2 ?
A. 2 − 10 + 23 = 0 C. 2 + 10 − 23 = 0 . 2 + 10 + 23 = 0 D. 2 − 10 − 23 = 0 19. If p > 0, and x2 - 11x + p = 0 has integer roots, how many integer values can 'p' take?
A. 5 B. 6 C. 10 D. 11
20. The sum of two numbers is 12 and their product is 35. What are the two numbers? A. 5 and 7 B. -5 and -7 C. -5 and 7 D. 5 and -7